Help Uncover the Words

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Across
  1. 4. Atomic number 16.00
  2. 5. Atomic number 12.01
  3. 6. Atomic number 14.01
  4. 8. Atomic number 19.00
  5. 9. Atomic number 4.00
Down
  1. 1. Atomic number 1.01
  2. 2. Atomic number 20.18
  3. 3. Atomic number 6.94
  4. 5. Atomic number 35.45
  5. 7. Atomic number 22.99